Chains and heterogens:
PDB Chain Sequences:
>1apnA (A:) adtivaveldtypntdigdpsyphigidiksvrskktakwnmqngkvgtahiiynsvdkr lsavvsypnadsatvsydvdldnvlpewvrvglsastglyketntilswsftsklksnst hetnalhfmfnqfskdqkdlilqgdattgtdgnleltrvssngspqgssvgralfyapvh iwessavvasfeatftflikspdshpadgiaffisnidssipsgstgrllglfpdan
>1apnA (A:) adtivaveldtypntphigidiksvrskktakwnmqngkvgtahiiynsvdkrlsavvsy pnadsatvsydvdldnvlpewvrvglsastglyketntilswsftsklksnsthetnalh fmfnqfskdqkdlilqgdattgtdgnleltrvsgssvgralfyapvhiwessavvasfea tftflikspdshpadgiaffisnidssipsgstgrllglfpdan
>1apnB (B:) adtivaveldtypntdigdpsyphigidiksvrskktakwnmqngkvgtahiiynsvdkr lsavvsypnadsatvsydvdldnvlpewvrvglsastglyketntilswsftsklksnst hetnalhfmfnqfskdqkdlilqgdattgtdgnleltrvssngspqgssvgralfyapvh iwessavvasfeatftflikspdshpadgiaffisnidssipsgstgrllglfpdan
>1apnB (B:) adtivaveldtypnsyphigidiksvrskktakwnmqngkvgtahiiynsvdkrlsavvs ypnadsatvsydvdldnvlpewvrvglsastglyketntilswsftsklksnsthetnal hfmfnqfskdqkdlilqgdattgtdgnleltrvqgssvgralfyapvhiwessavvasfe atftflikspdshpadgiaffisnidssipsgstgrllglfpdan